Collective expansion in high-energy heavy ion collisions
Collective expansion in high-energy heavy ion collisions
复制标题
高能重离子碰撞中的集体膨胀
DOI：
10.1103/physrevlett.78.2080
复制
发表时间：
1997
影响因子：
8.6
通讯作者：
D. Zachary
中科院分区：
文献类型：
--
作者：
I. Bearden;H. Boggild;J. Boissevain;J. Dodd;B. Erazmus;S. Esumi;C. Fabjan;D. Ferenc;D. Fields;A. Franz;J. Gaardhøje;A. G. Hansen;O. Hansen;D. Hardtke;H. Hecke;E. Holzer;T. Humanic;P. Hummel;B. Jacak;R. Jayanti;H. Kalechofsky;M. Kaneta;M. Kopytine;Y. Lee;M. Leltchouk;T. Ljubičić;B. Lörstad;N. Maeda;R. Malina;A. Medvedev;M. Murray;S. Nishimura;H. Ohnishi;G. Paic;S. Pandey;F. Piuz;J. Pluta;V. Polychronakos;M. Potekhin;G. Poulard;D. Reichhold;A. Sakaguchi;J. Simon;J. Schmidt;W. Sondheim;M. Spegel;T. Sugitate;J. Sullivan;Y. Sumi;W. Willis;K. Wolf;N. Xu;D. Zachary
本文给出了在CERN的NA-44聚焦谱仪上测量的200 AGeV S+S和158 AGeV Pb+Pb对称重离子碰撞中π介子、K介子和质子的横质谱。的斜率参数的质量依赖性提供了证据的集体横向流的系统在重离子诱导的中心碰撞膨胀。{版权} {美国物理学会}
Transverse mass spectra of pions, kaons, and protons from the symmetric heavy-ion collisions 200AGeV S+S and 158AGeV Pb+Pb, measured in the NA44 focusing spectrometer at CERN, are presented. The mass dependence of the slope parameters provides evidence of collective transverse flow from expansion of the system in heavy-ion induced central collisions. {copyright} {ital 1997} {ital The American Physical Society}